Ge-containing Lewis acidic zeolites are typically synthesized using a conventional hydrothermal strategy from amorphous silica sources, through a long time- and energy-consuming approach limiting their wide applications. This study reports a rapid synthesis strategy for a series of IWV aluminogermanosilicate zeolites (T-x-Al) with a wide range of Si/Ge molar ratios (5–15) by interzeolite transformation of dealuminated FAU (DA-FAU). Notably, Ge-rich IWV could be obtained with crystallization time as short as one day by the equimolecular Si/Ge ratio gel. The effect of synthetic parameters was investigated and the obtained T-x-Al samples were characterized by XRD, SEM, EDS, ICP, ²⁹Si and ²⁷Al MAS NMR, FTIR, and N₂ physisorption analyses. Compared with a previously reported IWV germanosilicate (H-3), T-x-Al displayed a better catalytic activity in Baeyer-Villiger (BV) oxidation, attributed to the presence of the active framework Ge sites with the assistance of the extra-framework Al species. The cyclic catalysis tests revealed that the presence of framework Al species contributed to the stability of the T-x-Al. Specifically, T-x-Al, with 14-membered ring (MR) supercages, outperformed the typical 12-MR Sn-beta catalyst in the BV oxidation of large ketone-like 2-admantanone, indicating a promising potential application in the macromolecular catalytic process.

含Ge路易斯酸性沸石通常采用传统的水热策略从无定形二氧化硅源合成，通过耗时耗能的方法限制了其广泛应用。本研究报告了通过脱铝 FAU (DA-FAU) 的沸石间转化，快速合成一系列具有各种 Si/Ge 摩尔比 (5-15) 的 IWV 铝锗硅酸盐沸石 (T-x-Al)。值得注意的是，通过等分子Si/Ge比例凝胶，可以在短短一天的结晶时间内获得富含Ge的IWV。研究了合成参数的影响，并通过 XRD、SEM、EDS、ICP、 ²⁹ Si 和 ²⁷ Al MAS NMR、FTIR 和 N < b2> 物理吸附分析。与之前报道的 IWV 锗硅酸盐 (H-3) 相比，T-x-Al 在 Baeyer-Villiger (BV) 氧化中表现出更好的催化活性，这归因于活性骨架​​ Ge 位点的存在以及骨架外 Al 物种的帮助。循环催化测试表明骨架Al物质的存在有助于T-x-Al的稳定性。具体而言，具有14元环（MR）超级笼的T-x-Al在大酮类2-金刚烷酮的BV氧化中优于典型的12-MR Sn-β催化剂，表明在大分子催化过程中具有广阔的潜在应用前景。